2005 (with D. Vogel) ‘Civic activation of immigrants. An introduction to conceptual and theoretical issues’ in D.Vogel (ed) Building Europe with New Citizens. Actve civic participation of immigrants in Europe, Luxembourg: Office for Official Publications of the European Communities, printed in 2006, pp. 5-25. Also available as POLITIS-Working paper No. 1/2005 POLITIS-WP1-2005, at http://www.uni-oldenburg.de/politis-europe/16084.html